Here's the situation - the liberals just don't get it, and conservatives have never had the true conservative leadership that both embraced all conservative principles AND was able to carry them out without compromise. Ronald Reagan came closest, but even he had to compromise with liberal Democrats.
No idea about the leanings of the source of the graphic (linked) but I liked the picture and wanted to properly credit them for it.
The struggle between ideas will never end - even with proof of Keynesian failures liberals will deny reality. So why not avoid the problem altogether? There's a way to do it that has some clear benefits.